I just tried the Albany NY receiver and this is what I got
Tune: trial accounts can not tune this receiver at this moment.
Just move on to one that lets you tune. Or wait for the moment to pass.
However, frequently the owner is on line and will unlock it for you.
Also, I found that if you ignore the locked for guest msg, you will find it isn't really locked. Seems like they all say that.
I don't know where the only two weeks comes from. That is the guest period. Once you have been on for two weeks, you graduate to "normal" and have permanent access.
What is really needed are some volunteers to set up some more receivers across the continent. There is now no way for me to hear myself on 160 for example under the usual condx.
js